ADMINISTRATORS
| Administrator | Name | Affiliation |
|---|---|---|
| Representative Director | Akio Ogura | Gunma Prefectural College of Health Sciences |
| Vice-president | Masao Funabashi | Osaka Prefectural Hospital |
| Vice-president | Shigeo Nishiki | Tenri Yorozu Soudansho Hospital |
| Vice-president | Yasuo Okuda | National Institute of Radiological Sciences |
| Director | Kiyokazu Iida | JIKEI University |
| Director | Takayuki Igarashi | Asahi General Hospital |
| Director | Takao Ichida | Osaka City University Hospital |
| Director | Tokiko Endo | National Hospital Organization Higashi Nagoya National Hospital |
| Director | Katsuhiko Ogasawara | Hokkaido University |
| Director | Hajime Sakamoto | University of Yamanashi Hospital |
| Director | Hiroshi Sakamoto | Tohoku University Hospital |
| Director | Tomoharu Sato | Cancer Institute Hospital |
| Director | Jyunji Shiraishi | Kumamoto University |
| Director | Hiroomi Sumida | Hiroshima University Hospital |
| Director | Rie Tanaka | Kanazawa University |
| Director | Koichi Senda | Tohoku University |
| Director | Hiroko Nishide | Gifu University of Medical Science |
| Director | Toru Negishi | Tokyo Metropolitan University |
| Director | Noriyuki Yanagawa | Eastern Chiba Medical Center |
| Director | Satoshi Yanagida | Kitasato University Medical Center |
| Auditor-secretary | Katsuhiko Mori | |
| Auditor-secretary | Kensei Kanna |
